基于FPGA的有源二分频音频放大电路设计与实现

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中图分类号：TN791 文献标志码：A

Abstract：Thispaper presentsthedesignofanFPGA-basedactivetwo-waycrosover audioamplifiersystem.Thesystemprimarily consistsofpre-processingcircuit，analg-todigitalconversioncircuitautomaticgaincontrol（AGC）circuit，filercireuit， digital-to-anologconversioncircuitandpoweramplifercircuitTeudiosigalisfistamplifiedbytepre-procesingiuit， transmitedtotGAcipianADoerer.WiinthGAtomaticginotrol，gsfleingndloasslnge implementedTeprocesedsignalistenconvertedviaaDAconversonandampliedandoutputbyadedicatedudiopowerapliier chip.Test results show that the system exhibits high efficiency，low distortion，and high stability.

KeyWords：FPG;prprocessingciuit;AGC;activetwowayrossoverciit;audioampliferuit;higpas fleig;as filtering

0引言

器全频段工作时效率低、功耗高，严重影响音质与器件寿命。（剩余5043字）